lonelypond

gravityisweak

Seems a bit pricey for a deal. I've had stirling engines made from cheap stuff before and they are quite underwhelming. This one will never be useful for doing anything besides showing how they work, and for that the list price of $200 bucks is just ridiculously overinflated. Even the review on amazon says the guy got it for $35 and prime shipping.

Secunza

Sorry for the delay but my wife wake up and she ask me what the hell was I looking for and when I told her "a Ni-MH battery that ThunderThighs told me I must have around" her answer was not polite... AT ALL.

ThunderThighs

Secunza wrote:Nope, I only found the alcohol (Additional Items Needed)

Sorry for the delay but my wife wake up and she ask me what the hell was I looking for and when I told her "a Ni-MH battery that ThunderThighs told me I must have around" her answer was not polite... AT ALL.

danwat1234

I'm 26 and an engineering student and I might just buy this to play with. Except, I'd rather help out the hungry in Africa, google "WeCanBeHeroes", and I'm broke.

Carnot / Stirling heat engines are cool because they far exceed the efficiency of today's piston cycle engine; OTTO (regular cars), Atkinson (full hybrids) and HCCI (Diesel). I could see a Stirling engine being in a plug-in hybrid as a range extender for great MPG. The thing that Stirling lacks in is immediate power changes so it can't be a direct part of the drivetrain. Not to mention, probably not a lot of power output for a given physical size.

Youtube video of this kit!: http://www.youtube.com/watch?v=0mgEOEdPsrw

earthltd

jlafollette

We sell T and K kits in my museum store and typically they are high quality. I cannot speak for this kit as it is over our price point. T and K is fairly ruthless about selling below their suggested MSRP and actually will stop selling you their product if you do so online. So....if you are interested in this you probably won't find it cheaper anywhere online.

mikemiracle

If you put a complete description of the product then nobody would ask about the battery. How about "battery not included" then you tell us what kind of battery it takes. If it's 4 AA recharges no big deal. If it takes some convoluted $50 tree huger battery that's no longer made except on a remote Russian military installation.... well then no thank you.

olcubmaster

mikemiracle wrote:If you put a complete description of the product then nobody would ask about the battery. How about "battery not included" then you tell us what kind of battery it takes. If it's 4 AA recharges no big deal. If it takes some convoluted $50 tree huger battery that's no longer made except on a remote Russian military installation.... well then no thank you.

Under the Specs tab it lists additional items needed but not included. There you will find:

pyrochild

danwat1234 wrote:I'm 26 and an engineering student
...
Carnot / Stirling heat engines are cool because they far exceed the efficiency of today's piston cycle engine; OTTO (regular cars), Atkinson (full hybrids) and HCCI (Diesel). I could see a Stirling engine being in a plug-in hybrid as a range extender for great MPG. The thing that Stirling lacks in is immediate power changes so it can't be a direct part of the drivetrain. Not to mention, probably not a lot of power output for a given physical size.

Another engineering student here and there's a few things you've got wrong. Stirling engines run on the Stirling cycle, not Carnot, which is purely theoretical.

Diesel engines run on the Diesel cycle. HCCI is closer to an Otto cycle that uses compression ignition, so it's like cross between diesel and gasoline engines.

HCCI engines are not commercially produced, though there are functional prototypes at GM, VW and others.

Finally, while Stirling engines are indeed very thermally efficient, they are not space or weight efficient. They are much larger and heavier than equivalently powerful gas or diesel engines. I don't see them being used in cars unless some breakthrough is made. They are much better suited to stationary applications than roaming ones.

inkycatz

Usually by everyone's names there is an envelope, which makes it super easy cheesy to send a message. But since not everyone's usually around in every thread, what I did was a search for Gatzby, and then clicked on the envelope to give you this direct link right here to try to help you out. Hopefully it should work.

lstaff

pyrochild wrote:Another engineering student here and there's a few things you've got wrong. Stirling engines run on the Stirling cycle, not Carnot, which is purely theoretical.

Diesel engines run on the Diesel cycle. HCCI is closer to an Otto cycle that uses compression ignition, so it's like cross between diesel and gasoline engines.

HCCI engines are not commercially produced, though there are functional prototypes at GM, VW and others.

Finally, while Stirling engines are indeed very thermally efficient, they are not space or weight efficient. They are much larger and heavier than equivalently powerful gas or diesel engines. I don't see them being used in cars unless some breakthrough is made. They are much better suited to stationary applications than roaming ones.

PemberDucky

molex wrote:Yes, don't encourage someone to report when a person affiliated with the site is being dismissive and rude to potential customers. That's just good business, right?

1. i think TT would be disappointed to know she rubbed somebody the wrong way. the truth is, she's probably the biggest customer advocate at Woot. (hence the fan club.)

2. we specialize in snark. it's all over the site. it's tongue-in-cheek. sometimes it bugs folks, but it's not meant to be malicious. most people kinda dig it.

3. we want you to be happy. that's not snark. it is true. i'll send you a battery. heck, i'll take it to you on foot, if it means you'll stick around and play with us. i'll need a place to crash overnight, though. do you have a spare room? i could just use your bath tub, i guess.

anyhoo, before i get anybody in trouble, i'll forward this along to the overlord so that he can summarily flog TT for her impudence!

-----------------------------------------------
Not sure if you should post that? This slightly-nsfw-flowchart will help.

molex

PemberDucky wrote:1. i think TT would be disappointed to know she rubbed somebody the wrong way. the truth is, she's probably the biggest customer advocate at Woot. (hence the fan club.)

2. we specialize in snark. it's all over the site. it's tongue-in-cheek. sometimes it bugs folks, but it's not meant to be malicious. most people kinda dig it.

3. we want you to be happy. that's not snark. it is true. i'll send you a battery. heck, i'll take it to you on foot, if it means you'll stick around and play with us. i'll need a place to crash overnight, though. do you have a spare room? i could just use your bath tub, i guess.

anyhoo, before i get anybody in trouble, i'll forward this along to the overlord so that he can summarily flog TT for her impudence!

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